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Finding the Fourth Proportional to 66,404.78, 99,619.02 and 22,034.20

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Solution

The fourth proportional to 66,404.78, 99,619.02 and 22,034.20 is: 33,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,404.78 : 99,619.02 = 22,034.20 : x
  2. Step 2: Convert to fraction form
    66,404.78/99,619.02 = 22,034.20/x
  3. Step 3: Cross multiply
    66,404.78x = 99,619.02 × 22,034.20
  4. Step 4: Simplify right side
    66,404.78x = 2,195,025,410.48
  5. Step 5: Solve for x
    x = 2,195,025,410.48/66,404.78
  6. Step 6: Final answer
    x = 33,055.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.